I*have spent considerable time practicing my bass drum singles and I've hit a major obstacle in my playing: despite my efforts I am unable to pass a tempo of about 130-140 while playing 8th notes. I've heard of the same thing happening to others at around the same tempo, and many said you need to switch to playing all ankles once you reach that point. When I do all ankles I can play a real fast twitching motion, it's in time and consistent, but I cannot yet control the start to a run of fast notes (bpm +180). Will this be fixed if I just practice this fast twitching, or is that a bad thing to practice?*Also how do I play tempos from about 130 to 170 (which seem to be somewhere in the middle of the two techniques)? Any advice is appreciated, thanks!
There are two main types of motion involved: ankle and hip. The slower the tempo, the more force should be generated by using flexion at the hip and the weight of your whole leg, and the faster the tempo, the more you should be using flexion of the ankle. There's no real cutoff point, it should just gradually shift. To pull some guesstimate numbers out: at 130, I'm using roughly 90% hip and 10% ankle, at 170, I'm using 60% hip and 40% ankle, at 180 I'm using 40% hip and 60% ankle. By the time I get up to 200, it's over 90% ankle; my hips don't move much at all.
One of the best ways to develop control over ankle motion is to repeatedly switch between subdivisions. Here are a few exercises switching between quarter notes and eighth notes:
| xxx_ xxx_ | xxx_ xxx_ :||
| x_xx x_xx | x_xx x_xx :||
| x_x_ xxxx | x_x_ xxxx :||
| xxxx x_x_ | xxxx x_x_ :||
| x_x_ x_x_ | xxxx xxxx :||
| xxxx xxxx | x_x_ x_x_ :||
If you practice those at tempos around 180 - 200, you'll eventually get used to starting streams of notes with mostly ankle motion.